Home / 2,079.31-3,121.95-2,042.41

Finding the Fourth Proportional to 2,079.31, 3,121.95 and 2,042.41

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Solution

The fourth proportional to 2,079.31, 3,121.95 and 2,042.41 is: 3,066.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079.31 : 3,121.95 = 2,042.41 : x
  2. Step 2: Convert to fraction form
    2,079.31/3,121.95 = 2,042.41/x
  3. Step 3: Cross multiply
    2,079.31x = 3,121.95 × 2,042.41
  4. Step 4: Simplify right side
    2,079.31x = 6,376,301.90
  5. Step 5: Solve for x
    x = 6,376,301.90/2,079.31
  6. Step 6: Final answer
    x = 3,066.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.